^^Getting some good advice here I reckon.
They look like Sportmax's. They can get pretty hard, and be pretty slick (had them on on my FZ1 when I got it, and the loaner ZR7 I rode for a while.) i hated them...lol.Mine started sliding well before they got to the edge, and straight line performance in the wet was shocking.
If you're happy with your level of fun and safety, why push it? I'm always looking at learning the roads better, and working on my lines to fit lumps and road imperfections into them...lol...I wanna get the "perfect run" from home to Lobethal (about 70km of twisties). The smoothest, most flowing, most non mid corner adjusting run I can.....mmmmm Perfect!....lol. Unfortunately, people then ride with you down bumpy roads, and curse you for taking any road which happens to come along, 'cause you know where the bumps are....LMAO. (they're ALL bumpy in the Adelaide hills though)
Sounds like you're loving life on the FZ though:thumbup::cheer:

, stay safe and enjoy mate.
Edit.....They are 55 series. Just clicked on the pic. Geometry isn't right for using the whole tire. You can "wander" of the edge of the front. As they wear down, they will inevitably square off a little and you keep getting closer to the edge. Definitely don't go for it. Sorry. Only just spotted that.